The Hobie Heavy Duty Plug-in Kayak Cart has a much higher capacity and tires with tread that are more rugged than the standard plug-in cart or the Trax carts. The Hobie Heavy Duty Plug-in Kayak Cart's capacity far exceeds the weight of the heaviest Hobie kayaks. Tire capacity lists as over 200 lbs per tire. These tires are foam filled and standard rubber tire with deep tread pattern.The Hobie Heavy Duty Plug-in Kayak Cart is the recommended cart for the Tandem Island.
It works great, but bogs down a little in loose sand. Much better than the homemade one I had been using.
I purchases the HD cart but found the plastic stops would not stay in place and support the ProA. Austin and Hobie very helpful and to replace unit.
With the low water levels in California due to the drought the Hobie Plug-in Cart makes it easy for me to get my Mirage Outback down to the water to fish.
Mine works well, used 10 or 20 times so far no issues. You can also make this from PVC, but the Hobie version is metal and seems very durable. Will see if any issues like the previously poster had, Im sure ACK will help you out !